Robert L Rich

US Patent:

D493012, Jul 13, 2004

Filed:

Nov 21, 2003

Appl. No.:

29/194224

Inventors:

Robert L. Rich - Bellflower CA 90706

International Classification:

2706

US Classification:

D27183

US Patent:

D515238, Feb 14, 2006

Filed:

Jul 22, 2004

Appl. No.:

29/209776

Inventors:

Robert L. Rich - Costa Mesa CA, US

International Classification:

2705

US Classification:

D27143, D27144

US Patent:

D529225, Sep 26, 2006

Filed:

Dec 30, 2005

Appl. No.:

29/245885

Inventors:

Robert L. Rich - Costa Mesa CA, US

International Classification:

2705

US Classification:

D27142, D27158, D3208

US Patent:

D539029, Mar 27, 2007

Filed:

Jun 23, 2006

Appl. No.:

29/261918

Inventors:

Robert L. Rich - Costa Mesa CA, US

International Classification:

0301

US Classification:

D 3207

US Patent:

D541041, Apr 24, 2007

Filed:

Mar 20, 2006

Appl. No.:

29/256289

Inventors:

Robert L. Rich - Costa Mesa CA, US

International Classification:

0301

US Classification:

D 3208

US Patent:

D566523, Apr 15, 2008

Filed:

Dec 29, 2006

Appl. No.:

29/270641

Inventors:

Robert L. Rich - Costa Mesa CA, US

International Classification:

0807

US Classification:

D 8347

US Patent:

45520232, Nov 12, 1985

Filed:

Sep 28, 1983

Appl. No.:

6/536490

Inventors:

Ronald Bowman - Laguna Beach CA
Michael T. Zimmerman - Arcadia CA
Robert A. Rich - Yorba Linda CA

Assignee:

Transamerica Delaval Inc. - Lawrenceville NJ

International Classification:

G01L 708

US Classification:

73715

Abstract:

A transducer diaphragm overload protection system provides a core of insulating material for supporting a sensor and being movable relative to a deflectable diaphragm portion, and establishes a mechanical interconnection between that deflectable portion of the diaphragm and that movable core, while that core is in a movable condition. The movable core is rendered stationary relative to the diaphragm, and the mechanical interconnection is removed by establishing between the deflectable diaphragm portion and the core a gap corresponding to a predetermined diaphragm deflection, while maintaining the core stationary relative to the diaphragm. Advantageously, in pressure transducers having a ceramic core for supporting the transducer sensor, the desired gap may then be established by locating a dissolvable shim between the core and the diaphragm, while such core is movable, and by thereafter dissolving such shim after the core has become set in the transducer. Alternatively, the diaphragm may be deflected by application of an overpressure, whereby the core is moved into the desired position, and the necessary gap may thereafter be established by relaxing the diaphragm after the core has become set in the transducer.

US Patent:

41791320, Dec 18, 1979

Filed:

Dec 27, 1977

Appl. No.:

5/864465

Inventors:

Robert L. Rich - Garden Grove CA

International Classification:

B62B 114

US Classification:

280 4726

Abstract:

A hand truck having in addition to the normal lower support platform and wheels, a structural loop for maintaining open trash bags in an erect and open condition on the platform. The loop is hingedly mounted to the hand truck about an axle for swinging upwardly and rearwardly so that it can be manually moved to a position where it does not obstruct the positioning of a conventional cylindrical trash container on the platform. The integral handle for the hand truck is formed to provide a stop for the rotation of the trash bag loop and the handle and the axle accommodate a clip-on tray which can be used to carry additional trash bags and small garden tools commonly used when collecting trash or pruning and trash bag clips.